Biographies

Mr. Kevin R. Sayer serves as Chairman of the Board, President, Chief Executive Officer of DexCom Inc. He has served on our Board since November 2007 and as our President since June 2011. From January 2013 until January 2015, Mr. Sayer also served as our Chief Operating Officer. In connection with Mr. Gregg assuming a new role as Executive Chairman of the Board of Directors, Mr. Sayer assumed the role of Chief Executive Officer effective on January 1, 2015. From April 2007 to December 2010, Mr. Sayer served as Chief Financial Officer of Biosensors International Group, Ltd. (“Biosensors”), a medical technology company developing, manufacturing and commercializing medical devices used in interventional cardiology and critical care procedures. Prior to joining Biosensors, from May 2005 to April 2007, Mr. Sayer served as an independent healthcare and medical technology industry consultant. From March 2004 to May 2005, Mr. Sayer was Executive Vice President and Chief Financial Officer of Specialty Laboratories, Inc., a company offering clinical reference laboratory services. From August 2002 to March 2004, Mr. Sayer worked as an independent healthcare and medical technology industry consultant. Mr. Sayer served as Chief Financial Officer of MiniMed, Inc. from May 1994 until it was acquired by Medtronic, Inc. in August 2001. Mr. Sayer served as Vice President and General Manager of Medtronic MiniMed after the acquisition until August 2002. Mr. Sayer is a Certified Public Accountant (inactive) and received his Master’s Degree in Accounting and Information Systems concurrently with a B.A., both from Brigham Young University.

Mr. Quentin S. Blackford is Chief Financial Officer, Executive Vice President of the Company. He joined DexCom in September 2017 as its Executive Vice President and Chief Financial Officer. Prior to DexCom, Quentin served as Nuvasive’s Executive Vice President, Chief Financial Officer from August 2014 to August 2017. In August 2016, Mr. Blackford was promoted to the role of Executive Vice President, Chief Financial Officer, Head of Strategy and Corporate Integrity in which role Mr. Blackford was responsible for leading Finance, Strategy, Corporate Development, Compliance, Quality and Regulatory. From July 2012 to August 2014, Mr. Blackford served as Nuvasive’s Executive Vice President of Finance and Investor Relations, and from January 2011 to June 2012, he served as Vice President, Finance. He was instrumental in several acquisitions to build upon NuVasive’s portfolio of products and entry into new product segments, as well as geographic expansion. Prior to his roles at Nuvasive, Mr. Blackford worked at Zimmer Holdings, Inc. where he led the organization’s Global Financial Planning & Analysis group, in addition to serving as Director of Finance and Controller of the Dental Division. Mr. Blackford has served as an independent member of the board of directors of Alphatec Holdings, Inc. since October 2017. Mr. Blackford obtained his Certified Public Accounting license (currently inactive) after receiving dual Bachelor of Science degrees in Accounting and Business Administration from Grace College.

Mr. Donald M. Abbey serves as Executive Vice President - Quality and Regulatory Affairs of the Company. He has served as our Executive Vice President, Quality and Regulatory Affairs since January 2017 and served as our Executive Vice President, Quality from May 2016 to January 2017. From March 2007 to April 2016 , Mr. Abbey served in executive roles for Becton Dickinson (the acquirer of CareFusion in March 2015 which itself was spun off from Cardinal Health in 2009), including as Senior Vice President, Quality and Regulatory for Becton Dickinson from March 2015 to May 2016, as Executive Vice President, Quality, Regulatory and Medical Affairs for CareFusion from May 2011 to March 2015, as Senior Vice President, Quality and Regulatory for CareFusion from October 2009 to May 2011, and as Senior Vice President, Quality and Regulatory for Cardinal Health from March 2007 to October 2009. Prior to 2007 Mr. Abbey held senior quality and regulatory affairs and general management positions with Respironics, Welch Allyn, and Philips Healthcare. Mr. Abbey began his career at Varian Medical and Boston Scientific holding positions of increasing responsibility in research and development and quality. Mr. Abbey received a B.S.E.E. from Washington State University and an M.B.A. from the University of Washington.

Mr. Andrew K. Balo serves as Executive Vice President - Regulatory Strategy, Clinical Affairs, and Strategic Partnership Development of DexCom Inc. He has served as our Executive Vice President of Regulatory Strategy, Clinical Affairs, and Strategic Partnership Development since May 2016. From January 2015 until April 2016 Mr. Balo served as our Executive Vice President, Clinical, Regulatory and Quality. From March 2008 to January 2015, Mr. Balo served as our Senior Vice President of Clinical and Regulatory Affairs, and from February 2002 to March 2008, served as our Vice President of Clinical and Regulatory Affairs. From June 1999 to February 2002, Mr. Balo served as Vice President, Regulatory and Clinical Affairs of Innercool Therapies, Inc., a medical technology company. Mr. Balo has held several positions at St. Jude Medical including Clinical, Vice President, Quality, Regulatory and Clinical Affairs and was an officer of the company. Mr. Balo received a B.S. from the University of Maryland.

Mr. Richard B. Doubleday serves as Executive Vice President, Chief Commercial Officer of DexCom Inc., since January 2015. From February 2013 to January 2015, Mr. Doubleday served as our Senior Vice President of Worldwide Sales and Marketing. From June 2009 to February 2013, Mr. Doubleday served as our Vice President of Sales. From May 1988 to June 2009, Mr. Doubleday served in various roles for Johnson & Johnson, Inc. (“J&J”), including Director of Marketing for J&J subsidiary Animas Corporation, a manufacturer of insulin pumps, from July 2006 to June 2009, and Field Sales Director for J&J subsidiary LifeScan, Inc., a manufacturer of blood glucose monitoring systems, from August 2002 to October 2005. Mr. Doubleday received a B.A. from Michigan State University.

Mr. Steven R. Pacelli serves as Executive Vice President - Strategy and Corporate Development of DexCom, Inc. Mr. Pacelli has served as our Executive Vice President of Strategy and Corporate Development since August 2012. Mr. Pacelli has served in roles of increasing responsibility with DexCom since April 2006, including as its Chief Operating Officer from June 2010 to August 2012, Chief Administrative Officer from December 2008 to June 2010, Senior Vice President of Corporate Affairs from June 2007 to December 2008, and Vice President of Legal Affairs from April 2006 to June 2007. Prior to joining DexCom, Mr. Pacelli served as a corporate attorney specializing in finance, mergers and acquisitions, and general corporate matters, and also in an executive role as general counsel of several privately held companies. Mr. Pacelli received a BA from the University of California, Los Angeles, and a J.D. from the University of Virginia. Mr. Pacelli is a member of the State Bar of California.

Ms. Heather Ace is Senior Vice President - Human Resources of the Company. She has served as our Senior Vice President, Human Resources since July 2016. Prior to DexCom, Ms. Ace served as Executive Vice President, Human Resources for Orexigen Therapeutics from January 2016 until July 2016. From January 2015 until January 2016, Ms. Ace served as Integration Leader for Royal Philips, leading the cross-functional integration of Philip Healthcare’s acquisition of Volcano Corporation. From May 2012 until January 2015, Ms. Ace served as Executive Vice President, Human Resources for Volcano Corporation. Prior to May 2012, Ms. Ace served various senior executive roles in human resources, post-acquisition / merger integration and employment law at Life Technologies. Ms. Ace began her career at Gray Cary Ware & Freidenrich (now DLA Piper), as a litigation and transactional employment attorney, specializing in mergers and acquisitions. Heather earned her B.A. in Law & Society from the University of California, Santa Barbara, and a J.D. from Santa Clara School of Law.

Mr. Jake Leach is Senior Vice President - Research and Development of the Company, since January 2015. Previously served as our Vice President of Research and Development from January 2011 to January 2015. From February 2010 to January 2011, he served as our Senior Director of Research and Development, from September 2008 to February 2010, he served as our Director of Research and Development, from January 2007 to February 2010 he served as our Manager of Hardware Engineering, and from March 2004 to January 2007 as Senior Electrical Engineer. From 1996 to 2004, Jake held positions in research and development at MiniMed and subsequently Medtronic Diabetes, focusing on the development of glucose sensing systems. Mr. Leach holds a Bachelor of Science degree in Electrical Engineering with a minor in Biomedical Engineering from the University of California, Los Angeles.

Mr. Jeffrey C. Moy serves as Senior Vice President - Operations of DexCom Inc. He has served as our Senior Vice President of Operations since January 2011, and previously served as our Vice President of Operations from September 2008 to January 2011. Previously, Mr. Moy served as our Senior Director of Manufacturing from September 2007 to September 2008. From April 2004 to August 2007, Mr. Moy served as Senior Director of Manufacturing for Biosite, Inc., a manufacturer of diagnostic products for point of care medicine. Mr. Moy received a B.S. from the University of Pennsylvania and a Masters in Engineering from Cornell University.

Mr. Patrick M. Murphy is Vice President, General Counsel and Chief Compliance Officer of the Company since December 2016. From January 2016 to December 2016, Mr. Murphy served as our Vice President of Legal Affairs. Previously, Mr. Murphy served as our Assistant General Counsel from September 2011 to January 2016. Prior to joining DexCom, Mr. Murphy was a partner at the law firm of Stradling Yocca Carlson & Rauth, where he specialized in corporate finance, mergers and acquisitions and general corporate matters. Mr. Murphy received a B.S. from the Truman State University, and a J.D. from the St. Louis University School of Law. Mr. Murphy is a member of the State Bar of California.

Mr. Mark G. Foletta, CPA., serves as Lead Independent Director of DexCom Inc. Mr. Foletta has served on our Board since November 2014 and has served as our Lead Independent Director since November 2015. Mr. Foletta has been the Chief Financial Officer and Executive Vice President of Tocagen, Inc. since February 2017. Mr. Foletta previously served as Senior Vice President, Finance and Chief Financial Officer of Amylin Pharmaceuticals, Inc., a publicly traded pharmaceutical company, from March 2006 through Amylin’s acquisition by Bristol Myers-Squibb Company in August 2012, and as Vice President, Finance and Chief Financial Officer of Amylin from 2000 to 2006. Prior to joining Amylin in 2000, Mr. Foletta held a number of management positions with Intermark, Inc. and Triton Group Ltd. from 1986 to 2000 and served as an Audit Manager with Ernst & Young. Mr. Foletta is currently a member of the Board of Directors and Audit Committee of AMN Healthcare Services, Inc., a publicly traded healthcare workforce solutions provider, and Regulus Therapeutics, Inc., a publicly traded biopharmaceutical company. From August 2015 to July 2016, Mr. Foletta served as the interim CFO of Biocept, Inc., an early commercial-stage publicly traded molecular oncology diagnostics company. Mr. Foletta is also on the Board of Directors of Viacyte, Inc., a private biotechnology company. Mr. Foletta received a B.A. in Business Economics from the University of California, Santa Barbara and is a member of the Corporate Directors Forum.

Mr. Steven R. Altman serves as an Independent Director of DexCom Inc., since November 2013. From November 2011 through January 2014, Mr. Altman served as the vice chairman of Qualcomm Incorporated (“Qualcomm”) and a member of Qualcomm’s executive committee. Mr. Altman previously served as the president of Qualcomm from July 2005 to November 2011, as Executive Vice President from November 1997 to June 2005 and as President of Qualcomm Technology Licensing from September 1995 to April 2005. Mr. Altman was the chief architect of Qualcomm’s strategy for licensing its broad intellectual property portfolio for wireless communications, which has accelerated the growth of CDMA technology. Mr. Altman served on the board of Ubiquiti Networks, Inc., a publicly traded company that develops networking technology for service providers and enterprises, from October 2013 to December 2015. Mr. Altman received a B.S. from Northern Arizona University in Police Science and Administration and a J.D. from the University of San Diego.

Mr. Nicholas Augustinos serves as Independent Director of DexCom Inc., since November 20, 2009. Since December 2015, Mr. Augustinos has served as President and CEO of Aver, Inc., a company specializing in bundled payment and analytics solutions. He served on the Board of Directors of Aver since September 2014. From November 2011 until December 2015, Mr. Augustinos worked for Cardinal Health, Inc. as its Senior Vice President for Health Information Services and Strategy. From March 2005 through October 2011, Mr. Augustinos worked for Cisco Systems, Inc. (“Cisco”), a networking company. At Cisco, he held various positions, including Director of Cisco’s Internet Business Solutions Group, Senior Director, Global Healthcare Solutions Group, and Senior Director of Global Healthcare Operations. In January 2015, Mr. Augustinos was appointed to the Board of Directors of the California Health Care Foundation (“CHCF”), which seeks to improve care for all Californians through innovations that improve quality, increase efficiency, and lower the cost of care. Prior to CHCF he served on the Board of Directors of the SCAN Foundation, an organization dedicated to advancing the development of a sustainable continuum of quality care for seniors, from June 2011 until December 2014. Mr. Augustinos served on the Board of Directors of Audax Health, now Rally, from March 2012 until February 2014. With a 31-year career in healthcare and healthcare technology, Mr. Augustinos has broad managerial, consulting and business development experience in the private and public sectors.

Mr. Richard Alexander Collins is Independent Director of the Company. He has served on our Board since March 2017. Mr. Collins has been a self-employed consultant since October 2013. From March 2011 to October 2013 Mr. Collins was the Chief Executive Officer for UnitedHealthcare’s Northeast Region and was President, Director and/or Chairman of numerous UnitedHealthcare subsidiaries including Oxford Health Plans, Mid Atlantic Medical Services and UHC Insurance Company of New York. From July 2005 through December of 2012 Mr. Collins served as the President – Individual Line of Business for UnitedHealthcare and the Chairman and Chief Executive Officer of Golden Rule Financial Corporation. Prior to 2011, Mr. Collins also held leadership positions in pricing, underwriting and healthcare economics with UnitedHealthcare. Mr. Collins has previously served on the Boards of Fairbanks Hospital in Indianapolis, Indiana, The Nature Conservancy—Indiana, United Healthcare Children’s Foundation and the Council for Affordable Health Insurance. Mr. Collins received a B.S. from Maine Maritime Academy and completed the executive development program at Harvard University’s John F. Kennedy School of Government.

Dr. Barbara E. Kahn serves as Independent Director of DexCom Inc., since April 28, 2011. Since January 2011, Dr. Kahn has served as the Patty and Jay H. Baker Professor of Marketing at The Wharton School, where she previously served as the Director of the Jay H. Baker Retailing Center from January 2011 to June 2017, Vice Dean of Wharton Undergraduate Division from 2003 to 2007, and the Dorothy Silberberg Professor of Marketing from June 1990 to July 2007. Prior to rejoining Wharton, Dr. Kahn served for three and a half years as the Dean and Schein Family Chair Professor of Marketing at the School of Business Administration, University of Miami, Coral Gables, Florida from August 2007 to January 2011. Dr. Kahn received her Ph.D., M.B.A. and M.Phil degrees from Columbia University, and a B.A. in English Literature from the University of Rochester.

Dr. Jay S. Skyler, M.D, MACP, serves as Independent Director of DexCom Inc., since September 2002. Dr. Skyler is a Professor of Medicine, Pediatrics and Psychology and Deputy Director of the Diabetes Research Institute at the University of Miami in Florida, where he has been employed since 1976. For 22 years, Dr. Skyler also served as Study Chairman for the National Institute of Diabetes & Digestive & Kidney Diseases Type 1 Diabetes clinical trials network. He is a past President of the American Diabetes Association and a past Vice-President of the International Diabetes Federation. Dr. Skyler served as a director of Amylin Pharmaceuticals, Inc. until its acquisition by Bristol-Myers Squibb Company in August 2012, and served as a director of MiniMed, Inc. until its acquisition by Medtronic, Inc. in 2001. Dr. Skyler received a B.S. from Pennsylvania State University and an M.D. from Jefferson Medical College.

Dr. Eric J. Topol, M.D., serves as Independent Director of DexCom Inc., since July 9, 2009. Since January 2007, Dr. Topol has served as the Director of the Scripps Translational Science Institute, a National Institutes of Health funded program of the Clinical and Translational Science Award Consortium. He is Executive Vice President and Professor of Molecular Medicine at the Scripps Research Institute, and a senior consulting cardiologist at Scripps Clinic. Prior to Scripps, Dr. Topol served on the faculty of Case Western Reserve University as a professor in genetics, chaired the Department of Cardiovascular Medicine at Cleveland Clinic for 15 years and founded the Cleveland Clinic Lerner College of Medicine. Dr. Topol serves as a digital medical advisor to Walgreens and Blue Cross Blue Shield Association. In April 2009, he co-founded the West Wireless Health Institute, a non-profit foundation for applied medical research and policy on the prevention of aging.

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